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Mercury 90 Operation Maintenance Warranty Installation Manual

Mercury 90
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EMISSION CERTIFICATION LABEL
An emission certification label, showing emission levels and engine
specifications directly related to emissions, is placed on the engine at the time
of manufacture.
a - Idle speed
b - Engine horsepower
c - Piston displacement
d - Engine power ‑ kilowatts
e - Date of manufacture
f - Family number
g - Regulated emission limit for the engine family
h - Regulated emission limit for the engine family
i - Recommended spark plug and gap
j - Percent of fuel line permeation
OWNER RESPONSIBILITY
The owner/operator is required to have routine engine maintenance performed
to maintain emission levels within prescribed certification standards.
The owner/operator is not to modify the engine in any manner that would alter
the horsepower or allow emission levels to exceed their predetermined factory
specifications.
Inspection and Maintenance Schedule
PRIOR TO EVERY USE
Check that the lanyard stop switch stops the engine.
Check the steering system for binding or loose components.
Verify that the outboard is securely attached to the boat transom. If the
outboard or any of its fasteners are loose, tighten them to the specified
torque. When checking to verify the outboard is securely fastened, look
for loss of outboard transom bracket material or paint caused by
movement between the outboard mounting fasteners and the outboard
transom brackets. Also look for signs of movement between the outboard
transom brackets and the boat transom or lift plate/setback bracket.
SPARK PLUG:
GAP:
EMISSION CONTROL
INFORMATION
THIS ENGINE CONFORMS TO
EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
CALIFORNIA AND U.S. EPA
REFER TO OWNERS MANUAL FOR REQUIRED MAINTENANCE,
SPECIFICATIONS, AND ADJUSTMENTS
IDLE SPEED (in gear):
FAMILY:
HC+NOx:FEL:
LOW PERM/HIGH PERM:
g/kWh
hp
L
e
d
c
b
a
f
g
h
i
HC+NOx:FEL:
g/kWh
hp
L
CO FEL:
g/kWh
kw
g/kWh
j
43210
MAINTENANCE
74 eng

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Mercury 90 Specifications

General IconGeneral
BrandMercury
Model90
CategoryOutboard Motor
LanguageEnglish

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